If the anticodon of an alanyl-tRNA is IGC (inosine-guanine-cytosine), to which of the following codons would...
If the anticodon of an alanyl-tRNA is IGC (inosine-guanine-cytosine), to which of the following codons would it bind?
The codon AUG specifies either initiation of protein synthesis
or an internal methionine. What would be the sequence of the
anticodon of a tRNA that binds to this codon?
a.GCU only
b.GCU or GCA only
c.GCU, GCC, or GCA
d.GCC only
e.GCU or GCC only
Homework Answers
| tRNA | mRNA |
| C | G |
| A | U |
| G | C, U |
| U | A, G |
| I | C, A, U |
If IGC is anticodon (consider CGI, because tRNA is in 3' to 5'), than it can pair with following codons,
GCC
GCA
GCU
Option c
If codon is AUG, than anticodons will be,
UAC
UAU
Note
For 1st and 2nd base, only one base will be complementary but for 3rd base more than one bases can be complementary because of wobble hypothesis.
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If the anticodon of an alanyl-tRNA is IGC
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During elongation of proteins during protein synthesis tRNA with the amino acid that matches its anticodon binds to the codon on the mRNA. each new amino acid is first transferred to the anticodon of the tRNA. anticodons on the ribosomes recognize the codons on the mRNA and attach the correct amino acids. ribosomes move along the DNA. RNA polymerase II uses the codons on the mRNA to polymerize the protein.
Question 9: The genetic code is read in groups of three nucleotides, called codons, in mRNA...
Question 9:
The genetic code is read in groups of three nucleotides, called
codons, in mRNA that specifies for a particular amino acid.
tRNA molecules act as the amino acid carriers that by correctly
pairing with the codon on mRNA can deliver the correct amino acid
to the ribosome during translation. At the tip of each tRNA
molecule is a group of three nucleotides called an anticodon and at
the other end is where the corresponding amino acid is attached...
Which of the following statements best describes the initiation of translation? A tRNA with the anticodon,...
Which of the following statements best describes the initiation of translation? A tRNA with the anticodon, AUG, enters the ribosomal complex and binds to the mRNA at the A site. b) The large and small ribosomal subunits scan the mRNA in the 3'-5 direction until the promoter is reached. The mRNA containing the start codon, AUG, sits at the P site and forms a complex with the corresponding tRNA, and the large and small ribosomal subunits. d) The mRNA attaches...
7. Which of the following mRNA codons would form a codon- anticodon base pairing interaction with...
7. Which of the following mRNA codons would form a codon- anticodon base pairing interaction with the 3'-UAG-5' tRNA anticodon? A) 3- ATC-5 B) 5'- GAU-3' C) 5-ATC-3' D) 3'-AUC-5 E) 5'-AUC-3'
(5 pts) A tRNA with the anticodon 3’- GAA - 5’ would bind to which of...
(5 pts) A tRNA with the anticodon 3’- GAA - 5’ would bind to which of the following codons? 5’ – CUU – 3’ 5’ – CUC – 3’ 5’ – CUA – 3’ 5’ – CUG – 3’ Any of the above!
* 1. Which of the following statements describes translation initiation in Eukaryotes: Initiation factors, a tRNAmet,...
* 1. Which of the following statements describes translation initiation in Eukaryotes: Initiation factors, a tRNAmet, and the ribosome's small subunit bind to the poly-A tail of mRNA. ✓ The ribosome's large subunit, tRNA, and P-site scan the mRNA for codons. ✓ The ribosome's large subunit binds to AUG codon on the mRNA. A ribosome binds to the C-terminus of an mRNA. Initiation factors, a tRNAmet, and the ribosome's small subunit bind to the 5'cap of mRNA. Initiation factors provide...
Table 1B: Protein Synthesis with 2nd DNA Template Strand DNA Codons in the 2nd Template Strand...
Table 1B: Protein Synthesis with 2nd DNA Template Strand DNA Codons in the 2nd Template Strand mRNA Sequence (List codons) Amino Acids in the Protein **Use the Genetic Code Chart on page 217 to determine the amino acids that will be placed in the protein Questions: 19. The three letter "code words of DNA and RNA that specify amino acids are called: A. codons B. promoters C. Introns D. anticodons 20. Proteins are composed of building blocks called: A. fatty...
can you guys please give me the correct answers and explain why? 27. Which of the...
can you guys please give me the correct answers and explain
why?
27. Which of the following statements regarding tRNAs is INCORRECT? A. In the folded structure of a tRNA, the anticodon loop is located near the 3' end of the molecule. B. Highly conserved nucleotides de primarily in the "loops" rather than the "stems". C. All tRNAs have the same 3 base sequence at their 3 end. D. All tRNAs contain post-transcriptionally modified nucleotides. E. In most cells, tRNA...
Place the following steps of TRANSLATION in the correct order for EUKARYOTES. The ribosome reaches a...
Place the following steps of TRANSLATION in the correct order for EUKARYOTES. The ribosome reaches a stop codon. A release factor binds and causes the release of the new polypeptide, along with the mRNA. The ribosome dissociates. v Acharged tRNA with a matching anticodon binds the mRNA codon in the A site. ✓ The ribosome moves exactly 3 nucleotides toward the 3* end of the mRNA. The small ribosomal subunit uses rRNA to bind to the Kozak sequence, which places...
a. On the right is the structure of a tRNA molecule. Which of the following is...
a.
On the right is the structure of a tRNA
molecule. Which of the following is
the anticodon sequence (from 3’ to 5’)
of this tRNA?
b.
Refer to the sequence of the tRNA molecule in Question 1 above
and the codon table, what is the codon sequence (from 5’ to 3’) on
the messenger RNA and which
amino acid is attached to this tRNA?
5
During elongation of proteins during protein synthesis tRNA with the amino acid that matches its anticodon binds to the codon on the mRNA. each new amino acid is first transferred to the anticodon of the tRNA. anticodons on the ribosomes recognize the codons on the mRNA and attach the correct amino acids. ribosomes move along the DNA. RNA polymerase II uses the codons on the mRNA to polymerize the protein.
Question 9:
The genetic code is read in groups of three nucleotides, called
codons, in mRNA that specifies for a particular amino acid.
tRNA molecules act as the amino acid carriers that by correctly
pairing with the codon on mRNA can deliver the correct amino acid
to the ribosome during translation. At the tip of each tRNA
molecule is a group of three nucleotides called an anticodon and at
the other end is where the corresponding amino acid is attached...
Which of the following statements best describes the initiation of translation? A tRNA with the anticodon, AUG, enters the ribosomal complex and binds to the mRNA at the A site. b) The large and small ribosomal subunits scan the mRNA in the 3'-5 direction until the promoter is reached. The mRNA containing the start codon, AUG, sits at the P site and forms a complex with the corresponding tRNA, and the large and small ribosomal subunits. d) The mRNA attaches...
7. Which of the following mRNA codons would form a codon- anticodon base pairing interaction with the 3'-UAG-5' tRNA anticodon? A) 3- ATC-5 B) 5'- GAU-3' C) 5-ATC-3' D) 3'-AUC-5 E) 5'-AUC-3'
* 1. Which of the following statements describes translation initiation in Eukaryotes: Initiation factors, a tRNAmet, and the ribosome's small subunit bind to the poly-A tail of mRNA. ✓ The ribosome's large subunit, tRNA, and P-site scan the mRNA for codons. ✓ The ribosome's large subunit binds to AUG codon on the mRNA. A ribosome binds to the C-terminus of an mRNA. Initiation factors, a tRNAmet, and the ribosome's small subunit bind to the 5'cap of mRNA. Initiation factors provide...
Table 1B: Protein Synthesis with 2nd DNA Template Strand DNA Codons in the 2nd Template Strand mRNA Sequence (List codons) Amino Acids in the Protein **Use the Genetic Code Chart on page 217 to determine the amino acids that will be placed in the protein Questions: 19. The three letter "code words of DNA and RNA that specify amino acids are called: A. codons B. promoters C. Introns D. anticodons 20. Proteins are composed of building blocks called: A. fatty...
can you guys please give me the correct answers and explain
why?
27. Which of the following statements regarding tRNAs is INCORRECT? A. In the folded structure of a tRNA, the anticodon loop is located near the 3' end of the molecule. B. Highly conserved nucleotides de primarily in the "loops" rather than the "stems". C. All tRNAs have the same 3 base sequence at their 3 end. D. All tRNAs contain post-transcriptionally modified nucleotides. E. In most cells, tRNA...
Place the following steps of TRANSLATION in the correct order for EUKARYOTES. The ribosome reaches a stop codon. A release factor binds and causes the release of the new polypeptide, along with the mRNA. The ribosome dissociates. v Acharged tRNA with a matching anticodon binds the mRNA codon in the A site. ✓ The ribosome moves exactly 3 nucleotides toward the 3* end of the mRNA. The small ribosomal subunit uses rRNA to bind to the Kozak sequence, which places...
a.
On the right is the structure of a tRNA
molecule. Which of the following is
the anticodon sequence (from 3’ to 5’)
of this tRNA?
b.
Refer to the sequence of the tRNA molecule in Question 1 above
and the codon table, what is the codon sequence (from 5’ to 3’) on
the messenger RNA and which
amino acid is attached to this tRNA?
5
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